LTC3815_15 Datasheet, PDF (8/42 Pages) Linear Technology – 6A Monolithic Synchronous DC/DC Step-Down Converter with Digital Power System Management

LTC3815
Typical Performance Characteristics
V_OUT Measurement Error vs V_OUT
1.0
V_IN = 5V
0.5
V_OUT Command INL
0.50
0.25
V_OUT Command DNL
0.50
0.25
0
0
0
–0.5
–0.25
–0.25
–1.0
0
1
2
3
4
OUTPUT VOLTAGE (V)
5
3815 G19
I_OUT Measurement Error vs I_OUT
0.10
3.5V to 1.0V
CCM MODE
FRONT PAGE CIRCUIT
0.05
–0.50
–25
–12.5
0
12.5
25
MFR_VOUT_COMMAND VALUE (%)
3815 G20
–0.50
–25
–12.5
0
12.5
25
MFR_VOUT_COMMAND VALUE (%)
3815 G21
I_IN Measurement Error vs I_IN
0.10
3.5V TO 1.8V
CCM MODE
FRONT PAGE CIRCUIT
0.05 I_OUT = 0 TO 6A
I_IN, I_OUT Measurement Error vs
Temperature, V_IN and Frequency
4
2
0
0
–0.05
–0.05
–0.10
–2
0
2
4
OUTPUT CURRENT (A)
6
3815 G22
–0.10
0
0.5 1 1.5 2 2.5 3
INPUT CURRENT (A)
3815 G23
0
–2
–4
–50
V_IN = 2.5V, 1MHz
V_IN = 3.3V, 1MHz
V_IN = 5V, 1MHz
V_IN = 3.3V, 2MHz
V_IN = 5V, 2MHz
–25 0 25 50 75
TEMPERATURE (°C)
100 125
3815 G24
V_IN Measurement Error vs V_IN
0
I_REF vs Temperature
0.2
I_REF vs Input Voltage
0.50
–0.1
0.1
0.25
–0.3
0
0
–0.4
–0.1
–0.25
–0.5
2
8
3
4
5
INPUT VOLTAGE (V)
6
3815 G25
–0.2
–50
0
50
100
TEMPERATURE (°C)
150
3815 G26
–0.50
2
For more information www.linear.com/LTC3815
3
4
5
INPUT VOLTAGE (V)
6
3815 G27
3815p